@article{DE_2003_39_8_a15,
     author = {M. F. Mugafarov},
     title = {The {Maximum} {Principle} for a {Hyperbolic} {Grid} {System} and {Its} {Applications}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1137--1139},
     publisher = {mathdoc},
     volume = {39},
     number = {8},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_8_a15/}
}